Often, vegan advocates assume that a person's defensiveness is the result of selfishness or apathy, when in fact it is much more likely the result of… - Melanie Joy

The path of the norm is the path of least resistance; it is the route we take when we're on autopilot and don't even realize we're following a course of action that we haven't consciously chosen. Most people who eat meat have no idea that they're behaving in accordance with the tenets of a system that has defined many of their values, preferences, and behaviors. What they call “free choice” is, in fact, the result of a narrowly constructed set of options that have been chosen for them. They don't realize, for instance, that they have been taught to value human life so far above certain forms of nonhuman life that it seems appropriate for their taste preferences to supersede other species' preference for survival.

Think about it: virtually every atrocity in the history of humankind was enabled by a populace that turned away from a reality that seemed too painful to face, while virtually every revolution for peace and justice has been made possible by a group of people who chose to bear witness and demanded that others bear witness as well.

The carnistic schema, which twists information so that nonsense seems to make perfect sense, also explains why we fail to see the absurdities of the system. Consider, for instance, advertising campaigns in which a pig dances joyfully over the fire pit where he or she is to be barbecued, or chickens wear aprons while beseeching the viewer to eat them. And consider the Veterinarian's Oath of the American Veterinary Medical Association, “I solemnly swear to use my … skills for the … relief of animal suffering,” in light of the fact that the vast majority of veterinarians eat animals simply because they like the way meat tastes. Or think about how people won't replace their hamburgers with veggie burgers, even if the flavor is identical, because they claim that, if they try hard enough, they can detect a subtle difference in texture. Only when we deconstruct the carnistic schema can we see the absurdity of placing our preference for a flawless re-creation of a textural norm over the lives and deaths of billions of others.